Celkon A21 is the smartphone from Celkon with 4.0 inches screen and the resolution of the screen is 320 x 480 pixels pixels. Phone was announced in 2014.
Microsoft Lumia 640 XL Dual SIM is the smartphone from Microsoft with 5.7 inches screen and the resolution of the screen is 720 x 1280 pixels pixels. Phone was announced in 2015, March. Screen of the phone comes with Corning Gorilla Glass 3 protection.
Here we are taking about comparison of the features and specification of the devices Celkon A21 and Microsoft Lumia 640 XL Dual SIM. Celkon A21 device comes with Li-Ion 1500 mAh battery. This phone is powered with Quad-core 1.3 GHz Cortex-A7 processor which gives maximum performance. While Microsoft Lumia 640 XL Dual SIM device comes with Li-Ion 3000 mAh battery. This device is powered with Quad-core 1.2 GHz Cortex-A7 processor which gives maximum performance.
Celkon A21 phone comes with 512 MB ROM, 256 MB RAM and it provide support for microSD, up to 32 GB.
Microsoft Lumia 640 XL Dual SIM phone comes with 8 GB, 1 GB RAM and it provide support for microSD, up to 128 GB.
The primary camera of Celkon A21 is 3.15 MP and the specification of the primary camera is .
Celkon A21 phone comes with a front camera and its specification is: 1.3 MP.
The primary camera of Microsoft Lumia 640 XL Dual SIM is 13 MP and the specification of the primary camera is 1/3'' sensor size.
Microsoft Lumia 640 XL Dual SIM phone comes with a front camera and its specification is: 5 MP, 1080p.
Main Features comparison of the devices Celkon A21 and Microsoft Lumia 640 XL Dual SIM.
Touch
Microsoft Lumia 640 XL Dual SIM provide the support for multi-touch and the screen comes with 720 x 1280 pixels (Approximately 259 ppi pixel density) resolution.
Battery
Battery of the Celkon A21 is Li-Ion 1500 mAh.
Battery of the Microsoft Lumia 640 XL Dual SIM is Li-Ion 3000 mAh.
Display
Display size of the Celkon A21 is 4.0 inches and display resolution is 320 x 480 pixels pixels.
Display size of the Microsoft Lumia 640 XL Dual SIM is 5.7 inches and display resolution is 720 x 1280 pixels pixels.
OS
The mobile device Celkon A21 runs on Android OS, v4.2.2 (Jelly Bean). Whereas Microsoft Lumia 640 XL Dual SIM runs on Microsoft Windows Phone 8.1 with Lumia Denim.
Processor
Celkon A21 is powered with Quad-core 1.3 GHz Cortex-A7 processor. Whereas Microsoft Lumia 640 XL Dual SIM comes with Quad-core 1.2 GHz Cortex-A7 processor.
Storage
Celkon A21 device comes with the 512 MB ROM storage supported model(s).
Microsoft Lumia 640 XL Dual SIM device comes with the 8 GB storage supported model(s).
Camera
Celkon A21 comes with Primary camera is of 3.15 MP and the second camera is of 1.3 MP.
Primary camera is of 13 MP and the second camera is of 5 MP in the device Microsoft Lumia 640 XL Dual SIM.
Check the full specification of Celkon A21.
Check the full specification of Microsoft Lumia 640 XL Dual SIM.
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